Oven-door spring control



' OVEN Doon sPRINGQpoNTBQIL.

Filed July e. 1925 ATTORNEY Patented Feb.v 8, 1927.

GEORGE A. STACKHOUSE; OF OAKLAND, CALIFORNIA, AYSSIGNOR yOE' ONE-HALF T0 CHARLES 'W'.4 PECK, 0F SAN' LEANDRO, CALIFORNIA.

OVEN-DOOR SPRING CONTROL.

Application niet Juiy e, 1925. serai No. 41,646.

This invention relates to an oven, door spring control and the method of attaching same, and refers more particularly to the type of oven door that is hinged 'at the bottom and requires a spring or springs to balance the weight of the door and to keep the .door closed.

The oven doors of this type are now usually vequipped with compression springs and attached rods and sockets, and have no adjustable fea-tures to compensate for the weakening of the `compression spring duc to heat and wear, and consequently the doors will not stay closed after the springs have weakened.

In my invention I use tension springs vwhich have al longer life than compression springs and the construction and means oi adjustment are very simple.

My invention will be more readily understood -from the following specifications and drawings, of which Figure 1 is a section through an ordinary gas stove oven, showing the oven door open and the broiler door closed.

Figure 2 is a partial elevation of the oven with part of the door frame in section to show the spring and attachments.

Figure 3 is a view of the adjustable link.

Figure t is a view of the tension spring.

Figure 5 is a view of another type of spring and link attachment.

Referring to Figure 1, numeral 1 indi-V cates an ordinary gas stove oven with the door 2 provided with hinge member 3 which passes through slot 4L of the door frame 5. Referring to Figure 3, an adjustable link is made ot stiil' steel wire members 11 andy 12, left and right hand threaded at 13 and 141 to engage similar threads in sleeve 15 to Jform a tiirnbuckle 'for longitudinal adjustment of said link. Upper Vlink member 11 is bent at rightangles to form the prongv or arm 16 and likewise the lower member 12 is bent at right angles to form the prong or arm 1'?,v and said arms .are slightly bent as at 13 to prevent them from becoming disengaged from spring and hinge. Lowerv Figure 5, a modified form f spring is tapered at its upper end asiat 31 to receive a cone 32, said cone being threadedto receive the upper threaded portion of link 33 which passes through spring 30. The lower end of link 33 is bent atright angles to form the prong or arm 34. Longi-v tudinal adjustment is made by screwing the link 33 in or out ot cone 31.

The broiler door 2 is provided `with hinge 3, link-10', spring 21 and bolt'22 and is i shown in a closed position. In this position the spring 21 is so adjusted that enough i pressure bears down on hinge" 3 through link 10 to keep the door in an uprightor closed position, with the spring and link verf tical. As the door is opened thelink travels upward and extends the springV until the hinge, in its arc of travel, has reached its horizontal position,V which4 isat a point just is not as elt'ective as a vertical thrust and.

the door will stay open. As soon. as the door is slightly closed, the linkand springl will assume a vertical position and the door will then close by the actionof the spring.

The lopposite end ot the doors are pro-j i vided with the spring and hinge assembly as above described.

From the disclosure it is apparent that I have provided a simpleand etlicient means for spring controls on oven doors.

While I have described the preferred forni oi my invention7 I wish it understood that any changes may be made in form and construction and arrangement oiparts as will not depart from the spirit of the invention.

lVhat'I claim is: Y

In a stove, a frame lorming a door opening having a. rounded lower frame element, a door having hinge elements extending therefrom adapted to ride on the trame element so as to allow the door to be swungl from open to closed position and a springdepressed rodbearing on the end of each hinge element and opposing the opening ot' the door, the hinge elements being of sulicient length to increase their distance from f the door frame when the vde orv isv opened whereby the purchase of the spring-depressed rod is increased. `1

In testimony whereof I affix my.signature.l

GEORGE A. srlioirnousn. y 

